EP1253310A2 - Water cooled cylinder head for an internal combustion engine - Google Patents
Water cooled cylinder head for an internal combustion engine Download PDFInfo
- Publication number
- EP1253310A2 EP1253310A2 EP02005553A EP02005553A EP1253310A2 EP 1253310 A2 EP1253310 A2 EP 1253310A2 EP 02005553 A EP02005553 A EP 02005553A EP 02005553 A EP02005553 A EP 02005553A EP 1253310 A2 EP1253310 A2 EP 1253310A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder head
- cooling water
- end wall
- head according
- water channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/40—Cylinder heads having cooling means for liquid cooling cylinder heads with means for directing, guiding, or distributing liquid stream
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/36—Cylinder heads having cooling means for liquid cooling
- F02F1/38—Cylinder heads having cooling means for liquid cooling the cylinder heads being of overhead valve type
Definitions
- the invention relates to a water-cooled cylinder head for an internal combustion engine, with a receiving shaft for receiving a camshaft drive element, especially a timing chain.
- the waste heat generated in the engine block and cylinder head area of an engine is usually through a closed, and through a heat exchanger (Cooler) running cooling water circuit discharged to the environment.
- the upheaval of the cooling water can be supported by a cooling water pump which preferably by the internal combustion engine itself, for example via a Drive belt that is driven.
- the integration of the heat exchanger in the Cooling water circuit can be done via pipe and hose lines. With regard for the engine to warm up as quickly as possible to a favorable operating temperature it is possible to use the heat exchanger as part of an engine start phase to bridge until a "small" cooling water circuit circulating cooling water has reached a predetermined temperature.
- the closing the cooling water pipe bridging the heat exchanger and the isolation the cooling water path leading via the heat exchanger is preferably carried out thermostatic switch.
- the pipe or outside the engine Hose lines are exposed to external influences to an increased extent prove themselves also with regard to the professional necessary for their installation Assembly technology as costly.
- the invention has for its object to provide an internal combustion engine, in which a favorable water supply of the cooling water circuit under one reduced assembly effort is achieved.
- a cylinder head for a Internal combustion engine with a covering a camshaft drive shaft Shaft end wall, a cooling water channel being formed in the shaft end wall which is from a cooling water inlet area to a cooling water outlet area extends.
- the shaft end wall is preferably double-walled, so that the Cooling water channel through the opposite walls of the Shaft end wall is formed.
- the cylinder head is also preferably made as a cast component.
- the cooling water channel can in a technically favorable manner by a lost core can be made.
- cooling water channel extends into a seat area, in which the cylinder head sits on the engine block.
- the transition area from the cooling water channel in the Engine block through a cylinder head gasket with appropriate openings seal is given by that the cooling water channel extends into a seat area, in which the cylinder head sits on the engine block.
- the cooling water channel has the Invention has a substantially flat-rectangular cross-section. hereby it becomes possible to have a comparatively large one within the shaft end wall To achieve channel cross-section. In a further advantageous manner, it is thereby possible, the outward-facing wall of the cooling water channel as a heat exchanger surface to use.
- the cooling water channel extends essentially over the entire width of the cylinder head. This makes it possible through the cylinder head even one that spans the entire width of the engine To provide line facility.
- the solution according to the invention is particularly suitable for cylinder heads with two overhead camshafts.
- These camshafts are preferably in half bearing seats formed in the cylinder head.
- the cylinder head side Sections of the bearing seats of both camshafts are below one through which Axes of the two camshafts define the bearing axis plane.
- the shaft end wall preferably extends between this bearing axis plane and the cylinder head / engine block seating area. This makes it possible to through the shaft end wall formed shaft above through a valve cover or cover the camshaft housing and at the bottom by the engine block.
- the cooling water channel preferably extends to a thermostat connecting flange surface.
- This thermostatic flange surface is preferred formed by machining on the cylinder head. in the The area of this thermostat connection surface is preferably a thermostat-controlled one Branch of the cooling water paths.
- the one through the shaft end wall The running cooling water channel preferably forms a cooler bypass channel Via which a defined cooling water flow, in particular during a cold start phase bypassing the actual heat exchanger to the water pump can be traced back.
- the cylinder head 1 shown in perspective in sections in FIG. 1 comprises one Manhole end wall 2.
- the manhole end wall 2 is part of an aluminum casting process integrally formed with the cylinder head 1.
- the shaft end wall 2 extends over the entire width of the cylinder head 1 and from a cylinder head seat 3 to one, through the camshaft axes X1, X2 defined level.
- the shaft end wall delimits a camshaft drive shaft 7 to accommodate a timing chain or other Camshaft drive member, for example, a spur gear.
- the lengthways of the cylinder head measured depth of the camshaft drive shaft 7 corresponds approximately to 1.2 to 2 times the width of one in the camshaft shaft introduced timing chain or a spur gear accommodated therein.
- the shaft end wall 2 is designed and encompassed as a double-walled structure an outer channel wall 5 and an inner channel wall 6.
- the channel walls 5, 6 delimit a cooling water channel formed in the shaft end wall 2 4.
- the cooling water channel 4 has a substantially flat cross section on.
- the cooling water channel 4 does not share a bearing seat 8 here shown sprocket.
- a fastening structure 9, 10 is integral with the shaft end wall 2 molded over which the cylinder head 1 is suspended on a suspension part can be.
- the initiation of those acting on the fastening structure 9, 10 Forces in the cylinder head, is due to the double-walled shaft end wall 2 supported in an advantageous manner.
- a cooling water outlet duct 11 is also formed on the cylinder head 1, through which the cooling water guided in the cylinder head 1 emerges from the latter can.
- cylinder head 1 a machining flange surface 12 is formed by machining.
- the shaft end wall 2 forms in the area of the camshaft axes X1, X2 Bearing seat halves 14, 15 for the storage of camshafts, their drive wheels or a timing adjustment device.
- Fig. 2 is in the form of a 3D computer simulation through the shaft end wall 2 fluid path 4 ′ formed in the cylinder head 1 by the cooling water channel 4 shown.
- the fluid path 4 ′ extends from one cooling water inlet area 16 to one Cooling water outlet area 17.
- the fluid path 4 ' divides to form one Island 18 in the area of the bearing seat 8 shown in FIG. 1. Through the im Area of the bearing seat 8 and the island 18 provided connection of the two Walls 5, 6 a high structural strength is achieved.
- the fluid path 4 has an im over the major part of its course essentially flat-rectangular cross-section.
- the fluid path 4 ′ bends inward toward the Engine block 19 down and opens out via a cylinder head seat 20 below Utilization of the sealing effect of a cylinder head gasket in one, in the engine block 19 trained water pump channel 21.
- the fluid path 4 forms a bypass via which a cooling water flow 11 'flowing out of the cylinder head 1 through a Thermostat arrangement 22 controlled to the engine block 19 or to a water pump can be traced back.
- the one formed in the shaft end wall 2 Cooling water channel 4 can, however, also be integrated into the fluid circuit in this way be that this in the opposite direction, for example to lead out the Cooling water flows through from the cylinder head.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Die Erfindung betrifft einen wassergekühlten Zylinderkopf für eine Brennkraftmaschine, mit einem Aufnahmeschacht zur Aufnahme eines Nockenwellenantriebsorgans, insbesondere einer Steuerkette.The invention relates to a water-cooled cylinder head for an internal combustion engine, with a receiving shaft for receiving a camshaft drive element, especially a timing chain.
Die im Motorblock- sowie im Zylinderkopfbereich eines Motors anfallende Abwärme wird üblicherweise durch einen geschlossenen, und über einen Wärmetauscher (Kühler) laufenden Kühlwasserkreislauf an die Umgebung abgeführt. Die Umwälzung des Kühlwassers kann durch eine Kühlwasserpumpe unterstützt werden, die vorzugsweise durch die Brennkraftmaschine selbst, beispielsweise über einen Antriebsriemen, angetrieben wird. Die Einbindung des Wärmetauschers in den Kühlwasserkreislauf kann über Rohr- und Schlauchleitungen erfolgen. Im Hinblick auf eine möglichst rasche Erwärmung des Motors auf eine günstige Betriebstemperatur ist es möglich, im Rahmen einer Motorstartphase den Wärmetauscher solange zu überbrücken, bis das über einen "kleinen" Kühlwasserkreislauf zirkulierende Kühlwasser eine vorgegebene Temperatur erreicht hat. Das Schließen der den Wärmetauscher überbrückenden Kühlwasserleitung sowie das Freischalten des über den Wärmetauscher führenden Kühlwasserweges erfolgt vorzugsweise thermostatgesteuert. Die außerhalb des Motors verlaufenden Rohr- oder Schlauchleitungen sind in erhöhtem Maße äußeren Einwirkungen ausgesetzt und erweisen sich auch im Hinblick auf die bei deren Einbau erforderliche fachmännische Montagetechnik als kostenträchtig.The waste heat generated in the engine block and cylinder head area of an engine is usually through a closed, and through a heat exchanger (Cooler) running cooling water circuit discharged to the environment. The upheaval of the cooling water can be supported by a cooling water pump which preferably by the internal combustion engine itself, for example via a Drive belt that is driven. The integration of the heat exchanger in the Cooling water circuit can be done via pipe and hose lines. With regard for the engine to warm up as quickly as possible to a favorable operating temperature it is possible to use the heat exchanger as part of an engine start phase to bridge until a "small" cooling water circuit circulating cooling water has reached a predetermined temperature. The closing the cooling water pipe bridging the heat exchanger and the isolation the cooling water path leading via the heat exchanger is preferably carried out thermostatic switch. The pipe or outside the engine Hose lines are exposed to external influences to an increased extent prove themselves also with regard to the professional necessary for their installation Assembly technology as costly.
Der Erfindung liegt die Aufgabe zugrunde, eine Brennkraftmaschine zu schaffen, bei welcher eine günstige Wasserführung des Kühlwasserkreislaufes unter einem verminderten montagetechnischen Aufwand erreicht wird. The invention has for its object to provide an internal combustion engine, in which a favorable water supply of the cooling water circuit under one reduced assembly effort is achieved.
Diese Aufgabe wird erfindungsgemäß gelöst, durch einen Zylinderkopf für eine Brennkraftmaschine mit einer, einen Nockenwellenantriebsschacht abdeckenden Schacht-Stirnwand, wobei in der Schacht-Stirnwand ein Kühlwasserkanal ausgebildet ist, der sich von einem Kühlwassereintrittsbereich zu einem Kühlwasseraustrittsbereich erstreckt.This object is achieved according to the invention by a cylinder head for a Internal combustion engine with a covering a camshaft drive shaft Shaft end wall, a cooling water channel being formed in the shaft end wall which is from a cooling water inlet area to a cooling water outlet area extends.
Dadurch wird es auf vorteilhafte Weise möglich, die Länge freiliegender Leitungen, beispielsweise flexibler Schläuche, zu vermindern. In weiterhin vorteilhafter Weise wird eine Vergleichmäßigung des Temperaturprofiles des Zylinderkopfes erreicht, da durch die erfindungsgemäße Lösung auch der Stirnwandbereich des Zylinderkopfes in den Kühlwasserkreislauf integriert ist. In weiterhin vorteilhafter Weise wird eine höhere Bauraumfreiheit, eine Reduktion potentieller Undichtigkeitsstellen sowie eine steifere Gestaltung des Stirnbereiches des Zylinderkopfes erreicht. Auch unter akustischen Gesichtspunkten erweist sich die erfindungsgemäße Lösung als besonders vorteilhaft, da durch die erfindungsgemäße Ausgestaltung der Stirnwand auch eine verbesserte Schallabkoppelung erreicht wird. Aufgrund der in vorteilhafter Weise verbesserten Kühleigenschaften des Zylinderkopfes wird gegenüber bisherigen Konstruktionen eine erhöhte Leistungsdichte erreicht.This advantageously enables the length of exposed lines, for example, flexible hoses. In a further advantageous manner the temperature profile of the cylinder head is evened out, since the solution according to the invention also the end wall region of the cylinder head is integrated in the cooling water circuit. In a further advantageous manner a greater freedom of installation space, a reduction in potential leakage points and achieved a more rigid design of the end region of the cylinder head. Even under From an acoustic point of view, the solution according to the invention proves to be particularly advantageous because of the configuration of the end wall according to the invention improved sound decoupling is also achieved. Because of the more advantageous Way improved cooling properties of the cylinder head is compared previous designs achieved an increased power density.
Eine gemäß einem besonderen Aspekt der vorliegenden Erfindung, insbesondere mit Blick auf eine besonders hohe Strukturfestigkeit, vorteilhafte Ausführungsform ist dadurch gegeben, daß die Schacht-Stirnwand integral mit dem Zylinderkopf ausgebildet ist und der Kühlwasserkanal sich vorzugsweise im wesentlichen quer zur Längsrichtung des Zylinderkopfes erstreckt.One according to a particular aspect of the present invention, in particular with a view to a particularly high structural strength, advantageous embodiment is given by the fact that the shaft end wall is integral with the cylinder head is formed and the cooling water channel is preferably substantially transverse extends to the longitudinal direction of the cylinder head.
Die Schacht-Stirnwand ist vorzugsweise doppelwandig ausgebildet, so daß der Kühlwasserkanal durch die einander gegenüberliegenden Wandungen der Schachtstirnwand gebildet ist.The shaft end wall is preferably double-walled, so that the Cooling water channel through the opposite walls of the Shaft end wall is formed.
Der Zylinderkopf ist weiterhin vorzugsweise als Gußbauteil gefertigt. Der Kühlwasserkanal kann hierbei auf fertigungstechnisch günstige Weise durch einen verlorenen Kern gefertigt werden. The cylinder head is also preferably made as a cast component. The cooling water channel can in a technically favorable manner by a lost core can be made.
Eine im Hinblick auf eine unter montage- und dichtungstechnischen Gesichtspunkten besonders bevorzugte Ausführungsform der Erfindung ist dadurch gegeben, daß der Kühlwasserkanal sich bis in einen Sitzflächenbereich hinein erstreckt, in welchem der Zylinderkopf auf dem Motorblock aufsitzt. Hierbei wird es auf vorteilhafte Weise möglich, den Übergangsbereich vom Kühlwasserkanal in den Motorblock durch eine, mit entsprechenden Durchbrüchen versehene Zylinderkopfdichtung abzudichten.One in terms of assembly and sealing technology a particularly preferred embodiment of the invention is given by that the cooling water channel extends into a seat area, in which the cylinder head sits on the engine block. Here it gets up advantageously possible, the transition area from the cooling water channel in the Engine block through a cylinder head gasket with appropriate openings seal.
Der Kühlwasserkanal weist gemäß einer bevorzugten Ausführungsform der Erfindung einen im wesentlichen flach-rechteckförmigen Querschnitt auf. Hierdurch wird es möglich, innerhalb der Schacht-Stirnwand einen vergleichsweise großen Kanalquerschnitt zu erreichen. In weiterhin vorteilhafter Weise wird es hierdurch möglich, die nach außen weisende Wandung des Kühlwasserkanales als Wärmetauscherfläche zu nutzen.According to a preferred embodiment, the cooling water channel has the Invention has a substantially flat-rectangular cross-section. hereby it becomes possible to have a comparatively large one within the shaft end wall To achieve channel cross-section. In a further advantageous manner, it is thereby possible, the outward-facing wall of the cooling water channel as a heat exchanger surface to use.
Vorzugsweise erstreckt sich der Kühlwasserkanal im wesentlichen über die gesamte Breite des Zylinderkopfes. Hierdurch wird es möglich, durch den Zylinderkopf selbst eine im wesentlichen die Gesamtbreite des Motors überbrückende Leitungseinrichtung bereitzustellen.Preferably, the cooling water channel extends essentially over the entire width of the cylinder head. This makes it possible through the cylinder head even one that spans the entire width of the engine To provide line facility.
Die erfindungsgemäße Lösung eignet sich insbesondere für Zylinderköpfe mit zwei obenliegenden Nockenwellen. Diese Nockenwellen sind vorzugsweise durch hälftig in dem Zylinderkopf ausgebildete Lagersitze gelagert. Die zylinderkopfseitigen Abschnitte der Lagersitze beider Nockenwellen liegen unterhalb einer, durch die Achsen der beiden Nockenwellen definierten Lagerachsenebene. Die Schacht-Stirnwand erstreckt sich vorzugsweise zwischen dieser Lagerachsenebene und dem Zylinderkopf/Motorblock-Sitzflächenbereich. Hierdurch wird es möglich, den durch die Schacht-Stirnwand gebildeten Schacht oben durch einen Ventildeckel oder Nockenwellengehäuse sowie unten durch den Motorblock abzudecken.The solution according to the invention is particularly suitable for cylinder heads with two overhead camshafts. These camshafts are preferably in half bearing seats formed in the cylinder head. The cylinder head side Sections of the bearing seats of both camshafts are below one through which Axes of the two camshafts define the bearing axis plane. The shaft end wall preferably extends between this bearing axis plane and the cylinder head / engine block seating area. This makes it possible to through the shaft end wall formed shaft above through a valve cover or cover the camshaft housing and at the bottom by the engine block.
Der Kühlwasserkanal erstreckt sich vorzugsweise bis zu einer Thermostat-Anschlußflanschfläche. Diese Thermostat-Anschlußflanschfläche ist vorzugsweise durch eine spanabhebende Bearbeitung an dem Zylinderkopf ausgebildet. Im Bereich dieser Thermostat-Anschlußfläche erfolgt vorzugsweise eine thermostatgesteuerte Verzweigung der Kühlwasserwege. Der durch die Schachtstirnwand verlaufende Kühlwasserkanal bildet hierbei vorzugsweise einen Kühler-Bypasskanal über welchen insbesondere während einer Kaltstartphase ein definierter Kühlwasserstrom unter Umgehung des eigentlichen Wärmetauschers zur Wasserpumpe zurückgeführt werden kann.The cooling water channel preferably extends to a thermostat connecting flange surface. This thermostatic flange surface is preferred formed by machining on the cylinder head. in the The area of this thermostat connection surface is preferably a thermostat-controlled one Branch of the cooling water paths. The one through the shaft end wall The running cooling water channel preferably forms a cooler bypass channel Via which a defined cooling water flow, in particular during a cold start phase bypassing the actual heat exchanger to the water pump can be traced back.
Weitere vorteilhafte Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in Verbindung mit der Zeichnung. Es zeigt:
- Fig.1
- eine perspektivische Detailansicht des Endbereiches eines Zylinderkopfes mit integraler, doppelwandiger Schachtstirnwand, wobei die Schachtstirnwand hier zwecks Einblick in deren Innenbereich geschnitten dargestellt ist;
- Fig.2
- eine 3D-Computersimulation zur Erläuterung der erfindungsgemäßen Kühlwasserführung von einem Anschlußflanschbereich bis in einen Motorblock.
- Fig.1
- a detailed perspective view of the end region of a cylinder head with an integral, double-walled shaft end wall, the shaft end wall being shown here cut for the purpose of viewing its interior;
- Fig.2
- a 3D computer simulation to explain the cooling water flow according to the invention from a connecting flange area to an engine block.
Der in Fig.1 abschnittsweise perspektivisch dargestellte Zylinderkopf 1 umfaßt eine
Schacht-Stirnwand 2. Die Schacht-Stirnwand 2 ist im Rahmen eines Aluminium-Gußvorganges
einstückig mit dem Zylinderkopf 1 ausgebildet.The
Die Schacht-Stirnwand 2 erstreckt sich über die gesamte Breite des Zylinderkopfes
1 sowie von einer Zylinderkopfsitzfläche 3 bis zu einer, durch die Nockenwellenachsen
X1, X2 definierten Ebene. Die Schacht-Stirnwand begrenzt einen Nockenwellenantriebsschacht
7 zur Aufnahme einer Steuerkette oder eines anderweitigen
Nockenwellenantriebsorgans beispielsweise einem Stirnrad. Die in Längsrichtung
des Zylinderkopfes gemessene Tiefe des Nockenwellenantriebsschachtes 7
entspricht in etwa der 1,2 bis 2-fachen Breite einer in den Nockenwellenschacht
hineingeführten Steuerkette oder einem darin aufgenommenen Stirnrad. The
Die Schacht-Stirnwand 2 ist als doppelwandige Struktur ausgebildet und umfaßt
eine äußere Kanalwandung 5 sowie eine innere Kanalwandung 6. Die Kanalwandungen
5, 6 begrenzen einen in der Schacht-Stirnwand 2 ausgebildeten Kühlwasserkanal
4. Der Kühlwasserkanal 4 weist einen im wesentlichen flachen Querschnitt
auf. Der Kühlwasserkanal 4 teilt sich um einen Lagersitz 8 eines hier nicht
dargestellten Steuerkettenrades.The
An der Schacht-Stirnwand 2 ist einstückig mit dieser eine Befestigungsstruktur 9, 10
angeformt, über welche der Zylinderkopf 1 an einem Aufhängungsteil aufgehängt
werden kann. Die Einleitung der auf die Befestigungsstruktur 9, 10 einwirkenden
Kräfte in den Zylinderkopf, wird durch die Doppelwandigkeit der Schacht-Stirnwand
2 in vorteilhafter Weise unterstützt.A
An dem Zylinderkopf 1 ist weiterhin ein Kühlwasseraustrittskanal 11 ausgebildet,
über welchen das in dem Zylinderkopf 1 geführte Kühlwasser aus diesem austreten
kann. Zum Anschluß entsprechender Leitungsorgane ist an dem Zylinderkopf 1
durch spanabehebende Bearbeitung eine Anschluß-Flanschfläche 12 ausgebildet.A cooling
Im Bereich der Nockenwellenachsen X1, X2 bildet die Schacht-Stirnwand 2
Lagersitz-Hälften 14, 15, zur Lagerung von Nockenwellen, deren Antriebsräder oder
einer Steuerzeiten-Einstelleinrichtung.The
In Fig. 2 ist in Form einer 3D-Computersimulation der durch die Schacht-Stirnwand
2 in dem Zylinderkopf 1 durch den Kühlwasserkanal 4 gebildete Fluidweg 4'
dargestellt.In Fig. 2 is in the form of a 3D computer simulation through the
Der Fluidweg 4'erstreckt sich von einem Kühlwassereintrittsbereich 16 zu einem
Kühlwasseraustrittsbereich 17. Hierbei teilt sich der Fluidweg 4' unter Bildung einer
Insel 18 im Bereich des in Fig. 1 dargestellten Lagersitzes 8 auf. Durch die im
Bereich des Lagersitzes 8 bzw. der Insel 18 vorgesehenen Verbindung der beiden
Wandungen 5, 6 wird eine hohe Strukturfestigkeit erreicht.The fluid path 4 ′ extends from one cooling
Der Fluidweg 4' weist über den überwiegenden Teil seines Verlaufes einen im wesentlichen flach-rechteckförmigen Querschnitt auf. The fluid path 4 'has an im over the major part of its course essentially flat-rectangular cross-section.
Im seinem, dem Motorblock 19 nahen Bereich biegt der Fluidweg 4' einwärts zum
Motorblock 19 hin ab und mündet über eine Zylinderkopf-Sitzfläche 20 unter
Ausnutzung der Dichtwirkung einer Zylinderkopfdichtung in einen, im Motorblock
19 ausgebildeten Wasserpumpenkanal 21.In its area close to the
Der Fluidweg 4' bildet bei diesem Ausführungsbeispiel einen Bypass über welchen
ein aus dem Zylinderkopf 1 herausströmender Kühlwasserstrom 11' durch eine
Thermostatanordnung 22 gesteuert zum Motorblock 19 oder zu einer Wasserpumpe
zurückgeführt werden kann. Der in der Schacht-Stirnwand 2 ausgebildete
Kühlwasserkanal 4 kann jedoch auch derart in den Fluidkreislauf eingebunden
werden, daß dieser in Gegenrichtung, beispielsweise zur Herausführung des
Kühlwassers aus dem Zylinderkopf durchströmt wird.In this exemplary embodiment, the fluid path 4 'forms a bypass via which
a cooling water flow 11 'flowing out of the
Claims (11)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10121063 | 2001-04-28 | ||
| DE2001121063 DE10121063A1 (en) | 2001-04-28 | 2001-04-28 | Water-cooled cylinder head for an internal combustion engine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1253310A2 true EP1253310A2 (en) | 2002-10-30 |
| EP1253310A3 EP1253310A3 (en) | 2003-07-09 |
| EP1253310B1 EP1253310B1 (en) | 2006-06-28 |
Family
ID=7683201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20020005553 Expired - Lifetime EP1253310B1 (en) | 2001-04-28 | 2002-03-11 | Water cooled cylinder head for an internal combustion engine |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1253310B1 (en) |
| DE (2) | DE10121063A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9528464B2 (en) | 2014-08-11 | 2016-12-27 | Ford Global Technologies, Llc | Bore bridge cooling passage |
| US9950449B2 (en) | 2015-03-02 | 2018-04-24 | Ford Global Technologies, Llc | Process and tool for forming a vehicle component |
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| DE19628400C1 (en) * | 1996-07-15 | 1998-01-29 | Daimler Benz Ag | Crankcase for internal combustion engine with V=form cylinders |
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| DE4015409C1 (en) * | 1990-05-14 | 1991-06-13 | Audi Ag, 8070 Ingolstadt, De | |
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| GB2329675A (en) * | 1997-09-27 | 1999-03-31 | Mechadyne Ltd | I.c. engine front cover with oil supply passages |
| DE19743445A1 (en) * | 1997-10-01 | 1999-04-08 | Man Nutzfahrzeuge Ag | Coolant and lubricant guide for internal combustion engines |
| DE19754009A1 (en) * | 1997-12-05 | 1999-03-04 | Daimler Benz Ag | Water-cooled reciprocating piston internal combustion engine with at least one cylinder bank |
-
2001
- 2001-04-28 DE DE2001121063 patent/DE10121063A1/en not_active Withdrawn
-
2002
- 2002-03-11 DE DE50207353T patent/DE50207353D1/en not_active Expired - Fee Related
- 2002-03-11 EP EP20020005553 patent/EP1253310B1/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE8621654U1 (en) * | 1986-08-12 | 1986-09-25 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Cylinder head for a liquid-cooled internal combustion engine |
| US4938185A (en) * | 1987-11-26 | 1990-07-03 | Nissan Motor Co., Ltd. | Engine cooling arrangement |
| EP0505346A1 (en) * | 1991-03-20 | 1992-09-23 | AVL Gesellschaft für Verbrennungskraftmaschinen und Messtechnik mbH.Prof.Dr.Dr.h.c. Hans List | Cylinder block for internal combustion engine with a liquid cooling system |
| DE19628400C1 (en) * | 1996-07-15 | 1998-01-29 | Daimler Benz Ag | Crankcase for internal combustion engine with V=form cylinders |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9528464B2 (en) | 2014-08-11 | 2016-12-27 | Ford Global Technologies, Llc | Bore bridge cooling passage |
| US9950449B2 (en) | 2015-03-02 | 2018-04-24 | Ford Global Technologies, Llc | Process and tool for forming a vehicle component |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1253310B1 (en) | 2006-06-28 |
| DE10121063A1 (en) | 2002-10-31 |
| DE50207353D1 (en) | 2006-08-10 |
| EP1253310A3 (en) | 2003-07-09 |
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